Vcd waveform editor, 15 vcd waveform editor – Achronix ACE Version 5.0 User Manual
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Editors
Chapter 3. Concepts
VCD Waveform Editor
The VCD Waveform Editor does not allow the user to edit a VCD file, it only allows viewing. But since it
resides in the same location in the GUI as all the other
, and it opens whenever the user selects a VCD
file, we’ll think of it as an editor in read-only mode.
The waveform viewer allows the user to examine VCD output in a familiar waveform visualization,
displaying how signals change values over time. It is typically used to examine the VCD output that gets
generated during a
session. (See also:
As with familiar waveform editors, the user will be able to manipulate the placement of a Marker (here, a
pink vertical line) with the mouse in the graphical waveform area, so that they can see the value of all signals
at the same instant of time. The user will also be able to re-order the signals (move an individual signal
vertically amongst its peers) and hide/show individual signals. If necessary, signals may be duplicated in
the display so that they can be displayed adjacent to multiple peers for ease of value comparisons. It is, of
course, possible to change the zoom level of the graphical waveform area if desired.
Note:
In addition to the graphical waveform view, the user may view the raw text content of the VCD
file. To do so, select the File Preview tab at the bottom of the VCD Waveform Editor. To see the graphical
waveform representation again, select the Waveform tab at the bottom of the VCD Waveform Editor.
Note:
None of the actions available in the VCD Waveform Editor will change the content stored in the
VCD file. All VCD actions are temporary, and are lost when the editor is closed.
Figure 3.65: VCD Waveform Editor
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